Magnetic properties of arrays of electrodeposited nanowires
Magnetic properties of arrays of electrodeposited nanowires
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DOI：
10.1016/s0304-8853(02)00531-0
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发表时间：
2002-08-01
影响因子：
2.7
通讯作者：
Redjdal, M
中科院分区：
文献类型：
--
作者：
Ross, CA;Hwang, M;Redjdal, M
综述了短纳米线阵列的制备方法及其磁性。该阵列由电沉积的铁磁圆柱体组成，其纵横比高达3，直径为57- 180 nm。它们的磁滞回线的特点和它们的剩磁状态的三维微磁模型，它显示了从一个单一的域的“花”状态的过渡到一个较低的剩磁的“涡”状态的预测与直径增加。阵列磁滞回线的形状取决于颗粒之间的相互作用。小镍柱的开关场可以用动态微磁模型来描述。(C)2002 Elsevier Science B. V.保留所有权利。
The fabrication and magnetic properties of arrays of short nanowires are reviewed. The arrays consist of electrodeposited ferromagnetic cylinders with aspect ratios of up to 3 and diameters of 57-180nm. Their hysteresis loops are characterized and their remanent states are related to the predictions of a three-dimensional micromagnetic model, which shows a transition from a single-domain 'flower' state to a lower-remanence 'vortex' state with increasing diameter. The shapes of the array hysteresis loops are governed by interactions between the particles. The switching fields of small Ni cylinders can be described using a dynamic micromagnetic model. (C) 2002 Elsevier Science B.V. All rights reserved.